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TL;DR

No major differences — 17 of 23 specs match.
Spec Mercedes-Benz AMG GT (C192) 63 4MATIC+ Mercedes-Benz AMG GT (C192) 63 PRO 4MATIC+ Difference
Model Years 2024–2026 2024–2026
Release Date 2024-01-12 2024-01-12
Body Style coupe coupe
Configuration V8 V8
Displacement 4.0L (243 ci) 4.0L (243 ci)
Engine Code M177 M177
Crank cross-plane cross-plane
Aspiration twin turbocharged twin turbocharged
Fuel gasoline gasoline
Redline 7,000 rpm 7,000 rpm
Power 577 hp 603 hp +4.5%
Torque 590 ft·lbs 627 ft·lbs +6.3%
Compression 10.5:1 10.5:1
Bore × Stroke 83.0 × 92.0 mm 83.0 × 92.0 mm
Powertrain ICE ICE
Drivetrain AWD AWD
Transmission automatic 9-speed automatic 9-speed
Curb Weight 4,343 lbs 4,343 lbs
Power-to-Weight 293 hp/ton 306 hp/ton +4.5%
0–100 km/h 3.2s 3.0s -6.3%
Top Speed 193 mph 197 mph +2.3%
MSRP $177,050 $191,050 +7.9%
Fuel Economy 14 / 20 / 16 mpg 14 / 20 / 16 mpg